Motor RPM:5000RPM Driver size（Φx H）:Dia.27.6 x Height 37.9 (mm) Pump head size(Φx H):Dia. 31.7 x Height 20.1(mm) pump tube size(IDxOD) :2.5*4.7mm weigh: 200g flow direction: you can control the flow direction by the positive and negative connect Feature: Silent work Suitable for aquarium, chemicals, liquids, dosing additives It is very easy take apart and clean, so there is gap between motor and pump.just pull out and push in is ok Packahe included : 1 * 12V DC DIY Dosing pump Peristaltic dosing Head

• Volts:DC 12V
• Current:80mA
• Relative humidity £Œ80%
• Flow rate:0-100 ml/min
• Rotate speed:0.1-100 rpm